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All results from a given calculation for C2H5I (Ethyl iodide)

using model chemistry: mPW1PW91/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/Def2TZVPP
 hartrees
Energy at 0K-377.067650
Energy at 298.15K 
HF Energy-377.067650
Nuclear repulsion energy121.240612
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at mPW1PW91/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3130 3130 17.15 85.54 0.24 0.38
2 A' 3116 3116 0.04 119.17 0.30 0.46
3 A' 3049 3049 20.80 238.06 0.10 0.17
4 A' 1498 1498 2.14 6.40 0.74 0.85
5 A' 1482 1482 1.58 5.74 0.73 0.84
6 A' 1413 1413 5.32 2.66 0.68 0.81
7 A' 1242 1242 71.42 15.73 0.34 0.51
8 A' 1080 1080 0.10 3.76 0.48 0.65
9 A' 980 980 14.12 3.92 0.59 0.74
10 A' 522 522 6.60 27.44 0.24 0.39
11 A' 257 257 1.03 3.35 0.34 0.51
12 A" 3189 3189 3.75 33.20 0.75 0.86
13 A" 3146 3146 7.30 65.81 0.75 0.86
14 A" 1485 1485 11.45 7.72 0.75 0.86
15 A" 1263 1263 0.39 0.86 0.75 0.86
16 A" 1000 1000 0.20 2.12 0.75 0.86
17 A" 750 750 5.49 0.05 0.75 0.86
18 A" 255 255 0.00 0.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14427.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14427.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at mPW1PW91/Def2TZVPP
ABC
0.99249 0.09939 0.09349

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.603 -1.430 0.000
C2 -0.575 -2.370 0.000
I3 0.000 0.636 0.000
H4 1.223 -1.535 0.885
H5 1.223 -1.535 -0.885
H6 -0.215 -3.402 0.000
H7 -1.198 -2.229 0.882
H8 -1.198 -2.229 -0.882

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.50722.15291.08541.08542.13452.15912.1591
C21.50723.06062.17122.17121.09321.08871.0887
I32.15293.06062.64412.64414.04383.22903.2290
H41.08542.17122.64411.77012.51722.51883.0767
H51.08542.17122.64411.77012.51723.07672.5188
H62.13451.09324.04382.51722.51721.76601.7660
H72.15911.08873.22902.51883.07671.76601.7638
H82.15911.08873.22903.07672.51881.76601.7638

picture of Ethyl iodide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.299 C1 C2 H7 111.537
C1 C2 H8 111.537 C2 C1 I3 112.284
C2 C1 H4 112.737 C2 C1 H5 112.737
I3 C1 H4 104.607 I3 C1 H5 104.607
H4 C1 H5 109.260 H6 C2 H7 108.074
H6 C2 H8 108.074 H7 C2 H8 108.198
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.211      
2 C -0.228      
3 I -0.112      
4 H 0.138      
5 H 0.138      
6 H 0.085      
7 H 0.095      
8 H 0.095      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.381 -2.020 0.000 2.055
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.693 -1.284 0.000
y -1.284 -36.785 0.000
z 0.000 0.000 -40.994
Traceless
 xyz
x -1.803 -1.284 0.000
y -1.284 4.058 0.000
z 0.000 0.000 -2.255
Polar
3z2-r2-4.511
x2-y2-3.908
xy-1.284
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.126 -0.181 0.000
y -0.181 11.003 0.000
z 0.000 0.000 6.699


<r2> (average value of r2) Å2
<r2> 120.177
(<r2>)1/2 10.963